申请人:HOYA CORPORATION
公开号:EP2746822A1
公开(公告)日:2014-06-25
A plastic lens having excellent weather resistance, formed by polymerization of a composition containing a polyisocyanate compound having an aromatic ring and a polythiol compound is provided. The plastic lens is formed by polymerization of a composition that contains 100 parts by mass in total of (A) a polyisocyanate compound containing a polyisocyanate compound having an aromatic ring and (B) a polythiol compound, from 0.5 to 5.0 parts by mass of (C) a benzophenone compound having a hydroxyl group on at least the ortho position, and from 0.5 to 5.0 parts by mass of (D) a phenol compound.
本发明提供了一种具有优异耐候性的塑料镜片,由含有芳香环的多异氰酸酯化合物和聚硫醇化合物的组合物聚合而成。该塑料镜片是由以下成分聚合而成:(A) 含有芳香环的多异氰酸酯化合物和(B) 聚硫醇化合物的组合物,以质量份数计,共占 100 份;(C) 至少在正位上有羟基的二苯甲酮化合物,以质量份数计,占 0.5 至 5.0 份;(D) 苯酚化合物,以质量份数计,占 0.5 至 5.0 份。